Comment (by Roland Haas):

I am afraid I cannot find any attachment in the ticket right now. The variables that I listed were only (common) examples. Any variables that has a number of timelevels not 1 or identical to the number of timelevels required by Carpet’s time prolongation (3 for 2nd order accurate prolongation in time) can trigger this.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2433/resubmit-failed-to-run